Free Tool

ATS Keyword Gap Checker

Paste your resume and a job description to see which keywords you're matching — and which ones are missing. Runs entirely in your browser; nothing is uploaded.

Paste both boxes to enable the check.

How the check works

The checker pulls the most significant keywords from the job description — the terms that repeat most often, which is what the employer's ATS and its recruiter actually screen for — then compares them against your resume text. You get three things back:

  • A match score — the percentage of the job description's top keywords that appear in your resume.
  • Matched keywords — what you're already aligned on, so you can see your strengths at a glance.
  • Missing keywords — the exact gaps to close before you submit.

Interpreting your score

70%+ — Strong match. The ATS should rank you well for this posting. Consider applying as-is or with light touch-ups.

40–69% — Borderline. You're in the conversation but likely below the cutoff for competitive postings. Weave the missing terms in where they honestly fit.

Below 40% — At risk of being filtered before a human reads you. Treat the missing list as your edit checklist — then re-check.

How to close keyword gaps without stuffing

Mirror the job description's terms

If the posting says “project management” and your resume says “oversaw initiatives,” rephrase to the employer's wording. Matching language is what recruiters expect — it's not gaming the system.

Weave keywords into bullets

A skills list is good, but keywords embedded in your achievement bullets are stronger: “Cut deployment time 40% using CI/CD and Docker” beats a bare list of the same tools.

Never claim what you don't have

Adding every missing keyword without the experience to back it up trades an ATS pass for a failed interview. Every term on your resume must survive a question in the room.

Want someone else to do the weaving? ApplyStudio rewrites your bullets around the job description — with a zero-fabrication guarantee — then scores the result. Or read the full guide to beating ATS screening.

Why keyword matching matters

Applicant tracking systems rank every application by how well it matches the job requisition — and 75%+ of resumes are filtered out before a recruiter sees them. Most rejections aren't about your experience; they're about your resume not using the hiring team's vocabulary. A keyword-gap check before you apply is the cheapest way to move your candidacy from the reject pile to the shortlist.

This is the same gap analysis our AI-powered optimizer performs on every resume it processes — you're seeing the free, manual version of what the full tool does in seconds.

Privacy note: this tool runs 100% in your browser. Your resume and job description never leave your device.